Concrete-block mold.



F. J. MARX 8: B. A. STEINKE.

CONCRETE BLOCK MOLD. APPLICATION FILED MAY 18. I916.

1,21%,810. Patented Feb. 6,1917.

2 SHEETS-SHEET I.

4 W4 by a Attorneys.

F. J. MARX & B. A.. STEINKE.

CONCRETE BLOCK MOLD. APPLICATION FILED MAY \s. 1916.

1,214,810. Patented Feb. 6,1917.

,, 2 SHEETSSHEET 2.

Atturneys FRANK JOSEPH MARX AND BERNARD ALFONS s'rnInKn, or BOTKINS, OHIO; SAID STEINKE ASSIGNOR 'ro SAID MARX.

Specification of Letters Patent.

CONCRETE-BLOCK MOLD.

Patented Feb. 6, 1917.

Application filed May 18, 1916. Serial No. 93,428.

To all whom it may concern:

Be it known that we, F RANK J. MARX and BERNARD A. STEINKE, citizens of the United States, residing at Botkins, in the county of Shelby, State of Ohio, have invented a new and useful Concrete Block Mold, of which the following is a specification.

The device forming the subject matter of this application is adapted to be employed for making concrete blocks of the sort used in the construction of silos and like buildings.

- The invention aims to provide a structure of this type in which blocks of different radii may be fashioned, the structure, therefore, being adapted to be used for making blocks to be employed in the building of silos and like structures of different diameters.

Another object of the invention is to provide a device of the type above mentioned including inner and outer rings, combined with novel means for holding the rings in place and in proper relation.

Another object of the invention is to improve the partitions which lie between the rings, and so to construct the partitions, that they will retain reinforcements which, during the making of the blocks, serve as a part of the molding machine, since they brace and sustain the partitions.

It is within the province of the disclosure to improve generally and. to enhance the utility of devices of that type to which the present invention appertains.

lVith the above and other objects in view which will appear as the description proceeds, the invention resides in the coinbina tion and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings, Figure 1 shows in top plan, a block mold constructed in accordance with the present invention; Fig. 2 is a side elevation of the structure shown in Fig. 1, parts being broken away, and parts appearing in section; Fig. 3 is a fragmental transverse section showing the inner and outer rings of the mold, together with one of the partitions which 'liebetween the rings; Fig. 4: is a perspective-view illustrating one of the partitions shown in place in Fig. 3; Fig. 5 is a fragmental top plan showing a modified form of the invention; Fig. 6 is a fragmental longitudinal section showing the structure delineated in Fig. 5; Fig. 7 is a perspectiveshowing one side of the partition; Fig. 8 is a perspective showing the cooperating part of the partition; and Fig. 9 is a perspective showing the opposite side of the partition shown in Fig. 8, from that delineated in the said figure.

In the drawings, the numeral 1 indicates a pallet. Fixed to and upstanding from the pallet 1 is a main ring 2. The main ring 2 may be formed integrally with the pallet 1 or it may be secured thereto in any other desired manner. As many main rings 2 as desired may be provided, the rings being of successively increasing diameters, in order that blocks of different diameters may be made in the device herein disclosed. It is to be understood. that with each main ring 2 there cooperates an outer ring of the type described hereinafter in connection with the single main ring 2. The inner or main ring 2 is provided in its upper edge with notches 8, spaced apart by distances representing the length of the blocks to be formed. Circumscribing the main ring 2 is an outer ring t which is flexible, and preferably is made of metal. The outer ring 4 has notches and 6 in its edges. Disposed between the rings 3 and e are partitions 18 of the sort shown in Fig. 4. The partition 18 has at its upper inner corner a projection 19 received in the notch 3 of the main or inner ring 2. int its outer edge and adjacent its top and bottom, the partition 18 is provided with projections 20 and 21. The projection 20 of the partitions 18 are received by the top notches 5 of the. outer ring 1, the projections 21 being received by the bottom notches 6 of the outer ring.

Secured to one end of the outer ring 4 is a cleat 7 carrying a stud 8. The cleat 7 terminates ina reduced foot 9 received in a recess 10 formed in the pallet 1. Secured to the other end of the outer ring 1 is a plate 11, which as shown at 12 in Fig. 1, overlaps thatend of the ring which carries the cleat '7. Projecting from the plate 11 is a stud let. The numeral 15 indicates a pair of links which are pivoted as shown at 16 to a lever 17. There are openings in the ends of the links 15, so that the ends of the links may be slipped onto the studs 14: and 8. When the links are thus mounted on the studs 11 and 8, the lever 17 may be pressed downwardly to the position of Fig. 2, whereupon the outer ring 4 will be tightened up, the partitions 18 being bound securely between the .rings 4- and 2, the foot 9 preventing one end of the ring 1 from moving while the ring is being tightened up.

It is obvious that after the structure has been set up as above described, the compartments defined by the rings 2 and. 1 and the partitions 18 may be filled with concrete, a series of segmental blocks thus being formed. It is understood that for each of the main rings, there is provided an outer ring 1 of the type above described, this being a mere duplication requiring no specific illustration. In view of the point last above de scribed, the structure may be used for making blocks which are to go into silos of dif ferent diameters, as many of the main rings 2 being used, as is thought expedient or necessary.

In Figs. 5, 6, 7, 8 and 9, a modified form of the invention is shown. In Figs. 5 and 6, the inner ring is shown at 22 and the outer ring is sh wn at 23, the pallet appearing at 24:. The pallet 24 is provided with openings 25 located between the rings. The rings 22 and 23 are equipped with notches 26 as hereinbefore set forth. The pallet 24, further, is provided with openings 27 disposed between the rings 22 and 23, and lying between the openings 25 hereinbefore mentioned.

The partitions are two-part structures, each partition including an upper member denoted generally by the numeral 28, and a lower member denoted by the numeral 29. The upper member 28 includes a plate 30 equipped with an intermediate, upright outstanding rib 31. In the lower end of the rib 31 there is fashioned a recess 32 into which projects, from the bottom of the rib 31, a pin 33. The plate 30 is provided at its upper end with projections 34, corresponding to the projections 20 and 19 of Fig. 4, and having a like function. Adjacent its lower end, the plate 30 is cut away as shown at to form a thinned lip 36.

The lower member 29 of the partition includes a plate 37 having an intermediate rib 38 from which projects downwardly, a pin 39. In the upper end of the rib 38 there is formed a recess 10, complemental to the re cess 32 of the partition member 28. In the top of the rib 38 there is formed a conical seat 41. In the upper edge of the rib 38 there is fashioned a notch 42, there being a similar notch 13 in the lower part of the rib 31 of the plate 30. At one of its lower corners the plate 37 is supplied with a projection 43 corresponding to the projection 21 of Fig. 1, and having a like function.

At its upper end, the plate 37 is cut away as shown at 1 1 to define a thinned lip similar to the lip 36.

The invention contemplates the use of a reinforcement which serves, as well, as a tie between the partitions. This reinforcement embodies a central bar 16 provided at its ends with eyes 1-7, the bar 16 being bent into zig-Zag form, as shown at 18, intermediate the eyes 17. A loop 4L9 is provided, the side portions of the loop 19 being bent to fashion rings 50 surrounding the bar 16 near to the eyes 17. One end of the strip out of which the loop 19 is made, is fashioned. into a depending finger 51, about which the other end of the strip-is engaged, as shown at 52.

In practical operation, the lower member 29 of the partition is mounted in place, the pin 39 being received in the opening 25. The eye 17 of the reinforcement is engaged around the pin 33 of the member 38 and the bar 46 projects either through the notci 1-3 or the notch 12, the lips 15 and 36 of the parts 29 and 28, respectively, being placed together, the pin 33 of the part 28 being received in the conical seat 41, and being centered thereby. The finger 51 of the reinforcement is received in the opening 27 of the pallet 24:. The parts then appear as indicated in Figs. 5 and 6.

Before concrete is placed in the molds, the loop 49 and attendant parts cooperate to form a connection between the partitions 28 29, and, after the blocks are formed, the loop 49 and the bar 16 constitute a reinforcement for the block. The ribs 38 and 31 form grooves in the ends of the blocks, and into these grooves the eyes -17 project, as will be clearly obvious from Fig. 5. The fingers 51 project below the lower faces of the blocks, and may be employed for tying together two superposed courses of blocks.

Having thus described the invention, what is claimed is 1. In a device of the class described, a pallet; an inner ring rigidly secured to'the pallet; a flexible outer ring surrounding the inner ring, the rings being provided with notches; partitions having projections received in the notches; a depending foot at one end of the outer ring; the pallet supporting both rings and provided with a seat re cciving the foot; and a tightening device connecting one end of the outer ring with the other end of the outer ring.

2. In a device of the class described, a pallet having spaced openings; spaced walls mounted on the pallet; and partitions between the walls, each partition comprising an upper plate having an outstanding rib provided'within its lower end with a recess open at one side and defining a rim having a notch, the rib being provided with a depending pin, each partition comprising also a lower plate having an outstanding rib provided in its upper end with a recess open at one side and defining a rim having a notch, the last specified rib having a seat receiving the pin, the recesses cooperating to define a compartment, the rib of the lower plate embodying a pin seated in one opening of the pallet; and a tie passing through the notches of adjacent partitions and provided with eyes located in the compartments and engaging the first specified pins of the partitions, the tie having a depending finger engaged in the other opening of the pallet.

3. In a device of the class described, a pallet having spaced openings; spaced walls mounted on the pallet; and partitions between the walls, each partition comprising an upper plate having an outstanding rib provided in its lower end with a recess open at one side and defining a rib havinga notch, the rib being provided with a depending pin, each partition comprising also a lower plate having an outstanding rib provided at its upper end with a recess open at one side and defining a rim having a notch, the recesses cooperating to define a compartment, the rib of the lower plate embodying a pin seated in one opening of the pallet; and a tie passing through the notches of adjacent partitions and provided with eyes located in compartments and engaging the first specified pins of the partitions, the tie having a depending finger engaged in the other opening of the pallet.

4. In a device of the class described, a pallet having an opening; spaced walls mounted on the pallet; and partitions between the walls, each partition comprising an upper plate having an outstanding rib provided in its lower end with a recess open at one side and defining a rim having a notch, the rib being provided with a depending pin, each partition comprising also a lower plate having an outstanding rib provided in its upper end with a recess open at one side and defining a rim having a notch, the last specified rib having a seat receiving the pin, the recesses cooperating to define a compartment, the rib of the lower plate embodying a pin seated in the said opening of the pallet; and a tie passing through the notches of adjacent partitions and provided with eyes located in the compartments and engaging the first specified pins of the partitions.

5. In a device of the class described, a pallet having spaced openings; spaced walls mounted on the pallet; and partitions between the walls, each partition comprising an upper plate having an outstanding rib provided in its lower end with a recess open at one side and defining a rim having a notch, the rib being provided with a depending pin, each partition comprising also a lower plate having an outstanding rib defining a rim having a notch, the last specified rib having a seat receiving the pin, the recesses cooperating to define a compartment, the rib of the lower plate embodying a pin seated in the opening of the pallet; and a tie passing through the notches of adjacent partitions and provided with eyes located within the compartments and engaging the first specified pins of the partitions.

6. In a device of the class described, a

pallet; spaced walls mounted on the pallet;

and partitions between the walls, each partition comprising an upper plate having an outstanding rib provided in its lower end with a recess open at one side and defining a rim having a notch, the rib being provided with a depending pin, each partition comprising also a lower plate having an 0utstanding rib provided in its upper end with a recess open at one side and defining a rim having a notch, the recesses cooperating to define a compartment; said notch and compartment serving to hold a tie having eyes with the eyes located in the compartments and engaged by the first specified pins of the partitions.

7. In a device of the class described, a pallet; spaced walls on the pallet; and partitions between the walls, each partition comprising upper and lower parts, one of said parts having a projection; a bar having eyes at its ends engaged with the projections, and a loop mounted on the bar, the loop being provided with a depending finger, and the pallet having an opening wherein the finger is received.

In testimony that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

FRANK JOSEPH MARX.

BERNARD ALF'ONS STEINKE. WVitnesses GEORGE H. SOHMERGE,

JOHN B. STOLTZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

